Dust-guard for car axle-boxes.



A CURRIE.

DUST GUARD FOR CAR AXLE BOXES.

APPLICATlON FILE-D NOV. 24. 1912.

Patented Dec. 24, 1918.

UNITED @TATES PATENT ttlh lhhltji ll.

ALEXANDER CURRIE, OF YONKERS, NEW YORK.

DUST-GUARD FOR CAR AXLE-BOXES.

Application filed November 24, 1917.

To all whom it may concern:

Be it known that I, Amaxaxonn Comma, citizen of Canada, and resident of Yonkers, in the county of \Vestchester and State of New York, have invented certain new and useful Improvements in Dust-Guards for Car Axle-Boxes, of which the following is a specification.

This invention has for an object to pro vide a self-supporting metallic dust guard of simple construction adapted to facilitate installation of the guard in the dust guard slot and to minimize danger of the uard being rendered non-selt-supporting Irom either defective application thereof to an axle box, or application to a defective or unsuitable box. or from other causes.

Figure 1 of the drawings is a face view of a dust guard embodying the invention.

Fig. 2 is a transverse vertical section on the line 22 of Fig. 1.

Fig. 3 is a side elevation.

Fig. 4 is a horizontal section.

Figs. 5 to 8 are similar views to Figs. 1 to 4 respectively, of a modified form of guard.

My improved dust guard as shown in Figs. 1 to 4, comprises a single plate 2 of resilient metal, preferably soft steel, and having formed thcreinan axle opening 4, surrounded by a collar 5, this opening being disposed approximately centrally of the plate.

The upper end of the plate is flanged over as at 6 on the same side as the collar 5, this flange in vertical section being in the form of a double curve whose extreme edge 6 bends backwardly toward the body of the plate. This upper flange preferably extends substantially the full width of the plate throughout its entire area although the upper corners may be curved slightly inward as at 7.

This lower end of the dust guard is also flanged over as at 10 on the same side as the flange 6, this flange being also preferably of the same double curve shape as the flange 8 and bending back toward the body of the plate at its edge as at 10.

In the present instance I have shown the sides of the guard as tapering toward one another in the lower portion thereof, as at 12, this tapering commencing a short distance above the junction of the flange 10 with the body of the plate.

The flange 10 preferably projects later- Specification of Letters Patent.

Patented Dec. 24 HMS.

Serial No. 203.805.

ally from the body of the plate a lesser distance than the flange 6 and is stiflened by bending down the sides of the plate to proride side flanges 13 which merge into the flange 10 toward the outer face thereof, short resilient portion projecting beyond the point of mergcncc of the side and bottom flanges.

The said flanges 13 preferably lessen in depth toward the upper end of the plate and merge into the upper flange 6 at a lesser dis tance from the body of the plate than into the lower flange 10.

With this construction the body of the plate and the lower flange are stiffened, this construction acting in conjunction with the lessened amount of projection of the lower flange n'iinimizing risk of damage to the guard during installation. the lower flange projecting just suliicient distance to permit of installation in the narrowest. dust guard slots in use without undue friction, the desired frictional hold against the walls of the slot being obtained when the upper flange is compressed into the dust guard slot.

T have indicated the cross sectional outline of the dust guard slot at 0 to show the position of the guard therein, but it is not thought necessary to further illustrate or describe the application of the guard to an axle box. this being similar to the Gamage guard, Pat. No. 1,015,551, which is well known to the art, the flanges being sufliciently offset from the plateto frictionally support the guard in the slot by their resilient pressure, while at the same time, a structure is provided which eliminates the tendency to permanent distortion of the guard found in the Gamage guard.

In the modification shown in Figs. 5 to 8 the guard is composed of a steel plate 20 of the same broad outline as that shown in Fig. 1 and having an axle opening 21 surrounded by a collar 22.

la the present instance the body of the plate is stiflened on each side of the axle opening by a series of vertical corrugations 25 which increase in size, as shown in the drawings toward the side edges of the plate.

Instead of having a single top flange extending continuously from side to side of the responding to the space between the flanges and 31. I

The lower flange may be stiffened by the corrugations 83 disposed inwardly ot' the corrugations 25 and overlapping thelower ends of the latter, these corrugations preferably decreasing in size toward the lower portion of the flange 2t and dying out a distance above the bottom edge of this flange, while the upper flanges may be stiflened by carrying the corrugations 25 upward thereinto, the corrugations closer to the axle opening being carried up farther than those adjacent the side edges of the plate.

This construction has the advantage of lightness and also of saving of steel since it will be apparent that in stamping the blanks the portion cut out between the top flanges 30 and 31 will constitute the lower flange of another guard.

The specific form of dust guard shown in Figs. 5 to 8 of the drawings has been made the subject matter of a divisional appli at tion filed Nov. 18, 1918, under Serial Number 263,030.

What I claim is 1. A dust guard for car axle boxes comprising a. single plate, having the sides thereof tapering toward one another in substantially straight lines near the bottom thereof, and having integral flanges at upper and lower ends, the lower flanges projecting from the body of the plate a lesser distance than the upper flange. and means stitl'ening said lower flange and the body of the plate.

2. A dust guard for car axle boxes comprising a single plate, having the sides thereof tapering toward one another in substantially straight lines near the bottom thereof, and having integral flanges at upper and lower ends, the lower flanges projecting from the body of the plate a lesser distance than the upper flange, and means stiffening said lower flange and the body of the plate. said means comprising side flanges merging into the lower flange.

3. A dust guard for ear axle boxes comprising a single plate, having the sides thereof tapering toward one another in substantially straight lines near the bottom thereof, and having integral flanges at upper and lower ends, the lower flanges projecting from the body of the plate a lesser distance than the upper flange, and means stiffening said lower flange and the body of the plate, said means comprising side flanges merging into the lower flange, and decreasing in depth toward the upper end of the plate.

4. A dust guard for car axle boxescom prising a single plate having integral flanges at upper and lower ends, said plate diminishing in width toward its lower end, the lower flange projecting from the body of the plate a lesser distance than the upper flange, and side flanges merging into the lower flange and serving to stiffen the latter and the body of the plate.

5. A dust guard for car axle boxes comprising a single plate having integral flanges at upper and lower ends, said plate diminishing in width toward its lower end, the lower flange projecting from the body of the plate a lesser distance than the upper flange, and side flanges merging into the lower flange and serving to stiffen the latter and the body of the plate, said side flanges decreasing in depth toward the upper end of the plate. a

6. A dust guard for car axle boxes com prising a single plate having integral flanges at upper and lower ends, said plate diininishing in width toward its lower end, the lower flange projecting from the body of the plate a lesser distance than the upper flange, and side flanges of less depth than said lower flange merging into said lower flange and serving to stifl en it and the body of the plate.

Signed at New York, in the county of New York and State of New York, this 23rd day of Now, A. D. 1917.

ALEXANDER CURRIE. 

